Re: [patch 7/8] fdmap v2 - implement sys_socket2

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To: Al Viro <viro@...>
Cc: dean gaudet <dean@...>, Kyle Moffett <mrmacman_g4@...>, Ulrich Drepper <drepper@...>, Davide Libenzi <davidel@...>, Alan Cox <alan@...>, Theodore Tso <tytso@...>, Eric Dumazet <dada1@...>, Linux Kernel Mailing List <linux-kernel@...>, Andrew Morton <akpm@...>, Ingo Molnar <mingo@...>
Date: Sunday, June 10, 2007 - 1:23 pm

On Sun, 10 Jun 2007, Al Viro wrote:

So it will still work better than trying to do a "getsockname()" or
something. If the file descriptor really _has_ been changed, it might give
a false negative (somebody replaced it with *another* socket), but on the
other hand, that's much better than a false positive. And if somebody
replaced the socket with a real file descriptor, it will catch it..

Linus
-

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Messages in current thread:
[patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Wed Jun 6, 6:30 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Arnd Bergmann, (Wed Jun 6, 8:29 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Wed Jun 6, 8:33 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Alan Cox, (Wed Jun 6, 6:59 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Linus Torvalds, (Thu Jun 7, 4:10 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Jeff Dike, (Fri Jun 8, 11:56 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Matt Mackall, (Thu Jun 7, 8:59 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Linus Torvalds, (Thu Jun 7, 10:25 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Thu Jun 7, 6:22 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Linus Torvalds, (Thu Jun 7, 7:42 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Thu Jun 7, 8:04 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Ulrich Drepper, (Thu Jun 7, 5:31 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Guillaume Chazarain, (Thu Jun 7, 4:59 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Guillaume Chazarain, (Thu Jun 7, 5:06 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Eric Dumazet, (Thu Jun 7, 4:47 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Linus Torvalds, (Thu Jun 7, 5:08 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Thu Jun 7, 5:41 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Wed Jun 6, 7:04 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Alan Cox, (Wed Jun 6, 7:19 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Wed Jun 6, 7:29 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Alan Cox, (Thu Jun 7, 6:06 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Thu Jun 7, 11:41 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Eric Dumazet, (Thu Jun 7, 6:45 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Alan Cox, (Thu Jun 7, 7:27 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Ulrich Drepper, (Wed Jun 6, 7:22 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Alan Cox, (Thu Jun 7, 6:04 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Ulrich Drepper, (Thu Jun 7, 10:25 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Eric Dumazet, (Thu Jun 7, 1:56 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Ulrich Drepper, (Thu Jun 7, 2:26 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Thu Jun 7, 2:39 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Andrew Morton, (Thu Jun 7, 4:03 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Ulrich Drepper, (Thu Jun 7, 10:55 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Fri Jun 8, 1:16 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Ulrich Drepper, (Thu Jun 7, 2:56 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Thu Jun 7, 3:12 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Thu Jun 7, 2:03 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Eric Dumazet, (Thu Jun 7, 2:57 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Kyle Moffett, (Thu Jun 7, 7:59 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Eric Dumazet, (Thu Jun 7, 9:12 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Thu Jun 7, 3:49 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Eric Dumazet, (Thu Jun 7, 4:05 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Thu Jun 7, 5:57 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Eric Dumazet, (Fri Jun 8, 12:38 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Fri Jun 8, 1:20 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Ulrich Drepper, (Thu Jun 7, 4:18 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Thu Jun 7, 5:44 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Ulrich Drepper, (Thu Jun 7, 6:03 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Thu Jun 7, 6:40 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Theodore Tso, (Fri Jun 8, 8:07 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Linus Torvalds, (Fri Jun 8, 2:35 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Fri Jun 8, 2:07 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Alan Cox, (Fri Jun 8, 9:01 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Fri Jun 8, 2:11 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Paul Mackerras, (Sat Jun 9, 1:41 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Sat Jun 9, 1:00 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Paul Mackerras, (Sun Jun 10, 2:26 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Sun Jun 10, 11:52 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, William Lee Irwin III, (Sun Jun 10, 3:10 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Kyle Moffett, (Sat Jun 9, 10:38 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Paul Mackerras, (Sun Jun 10, 2:48 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Sun Jun 10, 3:16 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Sun Jun 10, 11:56 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Alan Cox, (Fri Jun 8, 2:26 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Fri Jun 8, 3:22 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Ulrich Drepper, (Fri Jun 8, 2:43 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Alan Cox, (Fri Jun 8, 3:30 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Xavier Bestel, (Mon Jun 11, 4:24 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Fri Jun 8, 3:37 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Alan Cox, (Fri Jun 8, 3:48 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Fri Jun 8, 3:51 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Alan Cox, (Fri Jun 8, 5:24 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Fri Jun 8, 5:59 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Alan Cox, (Fri Jun 8, 6:28 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Fri Jun 8, 6:38 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Ulrich Drepper, (Fri Jun 8, 2:56 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Alan Cox, (Fri Jun 8, 3:34 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Linus Torvalds, (Fri Jun 8, 3:07 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Fri Jun 8, 3:21 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Linus Torvalds, (Fri Jun 8, 8:03 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Ulrich Drepper, (Fri Jun 8, 9:19 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Ulrich Drepper, (Fri Jun 8, 10:10 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Al Viro, (Sat Jun 9, 11:15 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Ulrich Drepper, (Sat Jun 9, 12:26 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Al Viro, (Sat Jun 9, 12:54 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Ulrich Drepper, (Sat Jun 9, 1:08 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Kyle Moffett, (Sat Jun 9, 3:27 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Al Viro, (Sat Jun 9, 10:40 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Linus Torvalds, (Sat Jun 9, 4:21 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Eric Dumazet, (Sun Jun 10, 5:14 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Linus Torvalds, (Sun Jun 10, 2:19 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Alan Cox, (Sun Jun 10, 11:16 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Al Viro, (Sat Jun 9, 11:19 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Linus Torvalds, (Sat Jun 9, 11:48 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, dean gaudet, (Sun Jun 10, 12:45 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Linus Torvalds, (Sun Jun 10, 1:06 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Al Viro, (Sun Jun 10, 1:46 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Linus Torvalds, (Sun Jun 10, 1:23 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Al Viro, (Sun Jun 10, 12:00 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Linus Torvalds, (Sun Jun 10, 12:03 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Al Viro, (Sun Jun 10, 12:06 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Linus Torvalds, (Sat Jun 9, 7:33 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Sat Jun 9, 11:35 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Sat Jun 9, 11:49 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Matt Mackall, (Sat Jun 9, 5:55 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Sat Jun 9, 4:31 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Matt Mackall, (Sat Jun 9, 5:41 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Sat Jun 9, 6:12 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Sat Jun 9, 1:04 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Sat Jun 9, 1:08 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Fri Jun 8, 8:13 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Ulrich Drepper, (Thu Jun 7, 4:02 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Thu Jun 7, 11:51 am)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, David Miller, (Wed Jun 6, 7:08 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Ulrich Drepper, (Wed Jun 6, 6:58 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, David Miller, (Wed Jun 6, 6:44 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Ulrich Drepper, (Wed Jun 6, 6:57 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, David Miller, (Wed Jun 6, 7:02 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, Davide Libenzi, (Wed Jun 6, 6:52 pm)
Re: [patch 7/8] fdmap v2 - implement sys_socket2, David Miller, (Wed Jun 6, 6:57 pm)